Adds a method to the ES controller to change status of ES to closed. Still need to add authentication and views to closed ES page
Merge branch 'stef' into finalise_es_plans
Hides finalise event link if the event suggestion is not hosted by the current user
Removes unnecessary elements in navbar, adds queries in show ES action for finalised events to get most popular event/date and adds some content to closed ES partial
Fixes merge conflicts
Adds code to show popular event choices (likely dates for the ES) in the open ES page